perf mem: Count L2 HITM for c2c statistic

L2 HITM is not counted in c2c statistic decoding. Count it for lcl_hitm
like how we handle L2 Peer snoop.

Reviewed-by: Leo Yan <[email protected]>
Signed-off-by: Yicong Yang <[email protected]>
Cc: CaiJingtao <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Ian Rogers <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: John Garry <[email protected]>
Cc: Jonathan Cameron <[email protected]>
Cc: Junhao He <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yushan Wang <[email protected]>
Cc: Zeng Tao <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

Author: Yicong Yang

tools/perf/util/mem-events.c

@@ -677,7 +677,10 @@ do {				\
 			if (lvl & P(LVL, LFB)) stats->ld_fbhit++;
 			if (lvl & P(LVL, L1 )) stats->ld_l1hit++;
 			if (lvl & P(LVL, L2)) {
-				stats->ld_l2hit++;
+				if (snoop & P(SNOOP, HITM))
+					HITM_INC(lcl_hitm);
+				else
+					stats->ld_l2hit++;
 
 				if (snoopx & P(SNOOPX, PEER))
 					PEER_INC(lcl_peer);